The paper presents new approaches and principles for identifying the conditions of stability disturbance based on detecting dangerous disturbances in early stages using information about changes regime parameters their Rate Change. As a mode parameter, mutual voltage angle between controlled 500 kV substation its Change was selected study. It is suggested to take values mentioned from Wide Area...

Nowadays, distributed generation (DG) has made it possible to generate electricity close the consumption site, resulting in improved efficiency, less environmental pollution, and higher economic profit. These advantages have led increased penetration of DGs distribution system. Protective devices a system are set by considering main substation as only source for feeding short circuit current. H...

This paper examines the use of interconnected synchronous system requirements for frequency containment reserves (FCR) on isolated industrial grids that turbogenerators as main source energy, have high penetration wind are equipped with energy storage, and a level constant power loads coupled by electronic converters. Leveraging recent Nordic in islanded operation (FCR <inline-formula xmlns:mml...

With the rapid expansion of new energy in China, large-scale grid connection is increasing, and operating safety power system being put to test. The static security stability region (SSSR) with hyper-plane expression an effective instrument for situational awareness stability-constrained operation systems. This paper proposes a hybrid improved particle swarm optimization (IPSO) recursive least ...

The massive penetration of distributed energy resources (DERs) in distribution networks provides a strategic opportunity for the system operator (DSO) to coordinate assets appropriately and offer services transmission systems. IEEE std. 1547-2018 introduced control mechanism enable power electronic converters (PECs) several services, including voltage regulation by controlling reactive injectio...

With the rapid increase in proportion of installed wind power capacity total grid capacity, state has put forward higher and requirements for integration into grid, among which most difficult requirement is zero-voltage ride through (ZVRT) capability turbine. When voltage drops deeply, a series transient processes, such as serious overvoltage, overcurrent, or speed rise, will occur motor, serio...